Chlorinating device for water



Aug. 27, 1935n w- L SAVELL 2,012,406

CHLORINATING DEVICE FOR WATER Filed Sept. 19, 1953 INVENTOR m Wa/ef' L, Saz/e BY Ml 23W/ *im ATTORNEYS r Patented Aug.--27,-\1 935 UNITED STA-Tes CHLORINATING DEVICE FOR WATER PATENT oFFicE walter Lee saveu, Forest Hills, N. Lasagna The Mathicson Alkali Works, Inc., New York, N. Y., a corporation of Virginia Application September 19, 1933, Serial No. 690,102

2 Claims.

10 to the. pressure in the water'supply connection the chlorine supply connection, is made subject chlorine supply connection between that valve and the eductor diminishes and to close as that pressure increases.

The accompanying drawing illustrates, diagrammatically and conventionally, a device embodying the invention. In the accompanying drawing, I is an eductor, 2 is the watersupply 40 connection, 3 is the chlorine supply connection,

4 is the time controlled valve in the water supply connection, 5 is the primary valve in the chlorine supply connection responsive to the pressure in the water supply connection in the tting 6 between the valve 4 and the eductor I, and 1 is the secondary valve in the chlorine supply connection responsive to the pressure in the chlorine supply connection in the tting 8 between this valve 'I and the eductor I. 9 is a conventional.` clock 50 operated valve controlling mechanism. I0 is a conventional pressure operated valve controlling mechanism adapted to open the valve 5 when the pressure in the tting 6 exceeds a predetermined value and to close this valve when that pressure is below that value. II is a conventional prespose valve, subject to the primary control, or-

sure operated valve controlling mechanism adapt# ed to open the valve 1 as the pressure in the tting 8 diminishes and to close this valve as that pressure increases. I2, I 3 `and I4 are supplementary control valves, and I5 and I6 are pressure gauges.

' I1 is an appropriate iilter, a conventional carbon lter for example.` I8 is the discharge connection from the eductor I. The valves 5 and 1 are with advantage arranged as shown, but the relative positions of these valves in the connection 3 lo may be reversed. t

In operation, water is discharged through the eductor AI at intervals determined by the clock mechanism 9. The pressure exerted by water iiowing through the iitting 6 opensivalve 5 whenever such iiow occurs. The primary valve 5 remains closed, however, except when such flow is occurring, whether the valve 4 is closed or whether the valve 4 is opened and ow fails for some 'other reason, through operation of the pressure zu mechanism I0. The clock mechanism 9 thus controls lthe discharge of chlorine, indirectly, andcannot function to eiIect such discharge of chlorne e'xcept into a. stream of water owing through the eductor I. 'Ihe proportioning oi the chlorine to the water is controlled by the joint operation'V of the eductor I, the secondary valve 1 and the pressure mechanism II. Flow of water through the eductor I eects a diminution of pressure in the chlorine supply connection between the valve v1, or valve I3, and the eductor I roughly proportionalto the volume o1' water flowing through the eductor, a function o1' the water pressure, and' the valve 1, through operationI of the pressure mechanism II, then proportions the owof chlou rine to the ,iiow of water. A j

'Valves' 5 and 1 may be replaced 'by a single dual purpose valve so connected to the pressure mechanisms III and II that it is closed, through operation o! the pressure mechanism I0 indeo pendently of the operation of the pressure mechanism II, except for periods during which a stream of water is -owing through the eductor I andthat, subject to this control by the pressure mechanism I0, it proportions the chlorine 5 to the water inthe same manner as valve 1, throughA operation oi' the pressure mechanism I I.

'v Y The device thus provides automatic control of l the periods of chlorination, automatic control' of the proportioning of chlorine to water during chlorination over a wide range of variation v in water pressure, and automatic protection against discharge of chlorine if the water pressure is for any reason insufilcient.

Chlorine may be suppliedto connection 3, -for 55 example, from any conventional liquid chlorine container.

The device is of general application for periodic chlorination of water. It is useful, for example, in connection with the chlorination of condensing water in steam powered generating stations to prevent the development and growth of algae in the condensers, etc.

I claim:

1. In combination in a device for periodically chlorinating water, an eductor, a water supply connection arranged tov discharge into the inlet port of said eductor a chlorine supply connection arranged to discharge into the suction port of said eductor, a time controlled valve in said water supply connection, a, primary valve in said chlorine supply connection responsive to the pressure in said water supply connection at a point between said time controlled valve and said eductor, and a secondary valve in said chlorine supply connection responsive to the pressure in said chlorine supply connection at a point betweensaid secondary valve and said eductor.

2. In combination in a device for periodically chlorinating water, an eductor, a water supply connection arranged to discharge into the inlet port of said eductor, a chlorine supply connection arranged to discharge into the suction port of said eductor, a time controlled valve in said water supply connection, and valving means in said chlorine supply-connection responsive primarily to the pressure in said water supply connection at a point between said time controlled valve and said eductor and secondarily to the pressure in said chlorine supply connection at a point between said valving means and said eductor.

WALTER LEE sAVELL. 

